The effect of different salinity levels on larval growth and survival of Farfantepenaeus aztecus (Ives, 1891) (Decapoda: Penaeidae)

Authors : Ahu Deniz ULUDAĞ, Mevlüt AKTAŞ

Pages : 100-104

Doi:10.51756/marlife.1026198

View : 22 | Download : 8

Publication Date : 2021-12-31

Article Type : Research Paper

Abstract :This study was designed to determine the effects of five different salinity levels insert ignore into journalissuearticles values(25, 30, 35, 40 and 45 ppt); on the survival rate of Farfantepenaeus aztecus larvae from Nauplius5 to post-larvae1 insert ignore into journalissuearticles values(N5-PL1);. For this purpose, 50 larvae that reached the N5 stage were stocked in 2-L round bottom glass flasks in five replications and were grown up to the PL1 stage at 27.6±0.4°C. At the end of the study, as the highest survival insert ignore into journalissuearticles values(44.00±23.15); in protozoal stages were obtained at 35 ppt salinity levels, the lowest survival 14.00±4.89); were found at 25 ppt salinity levels insert ignore into journalissuearticles values(P<0.05);. The highest survival rates from the M1 stage to the PL1 stage was obtained at 35 ppt insert ignore into journalissuearticles values(24.40±19.51);, 30 ppt insert ignore into journalissuearticles values(23.20±18.14); and 40 ppt, respectively. The survival rates at 25 and 45 ppt salinity levels were found statistically different from those of 30, 35, and 40 ppt insert ignore into journalissuearticles values(P<0.05);. The results of this study show for the first time that the optimum salinity level is the range of 30-40 ppt for larval culture obtained from the North-eastern Mediterranean population of brown shrimp that is the West Atlantic natural origin.
Keywords : Farfantepenaeus aztecus, salinity, larvae, micro algae, culture